Positive changes in bone metabolism and bone mineral density (BMD) were observed in 31 Chinese patients (average age 54.7 years) who underwent TPTx without autotransplantation, Zhongxin Li, MD, and collaborators from Capital Medical University in Beijing, reported online in the Scandinavian Journal of Clinical and Laboratory Investigation. For 5 patients, only 2–3 parathyroid glands were located and removed or residual glands were suspected.